EP3537987B1 - Vorrichtung zur entfernung von organen aus dem menschlichen oder tierischen körper - Google Patents

Vorrichtung zur entfernung von organen aus dem menschlichen oder tierischen körper Download PDF

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Publication number
EP3537987B1
EP3537987B1 EP17800489.1A EP17800489A EP3537987B1 EP 3537987 B1 EP3537987 B1 EP 3537987B1 EP 17800489 A EP17800489 A EP 17800489A EP 3537987 B1 EP3537987 B1 EP 3537987B1
Authority
EP
European Patent Office
Prior art keywords
tube
proximal end
gripping arms
sleeve
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17800489.1A
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German (de)
English (en)
French (fr)
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EP3537987A1 (de
Inventor
Bernd Büscherhoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Holthaus Bernd
Original Assignee
Holthaus Bernd
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Filing date
Publication date
Application filed by Holthaus Bernd filed Critical Holthaus Bernd
Publication of EP3537987A1 publication Critical patent/EP3537987A1/de
Application granted granted Critical
Publication of EP3537987B1 publication Critical patent/EP3537987B1/de
Active legal-status Critical Current
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
    • A61B17/22032—Gripping instruments, e.g. forceps, for removing or smashing calculi having inflatable gripping elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00287—Bags for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00353—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery one mechanical instrument performing multiple functions, e.g. cutting and grasping
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
    • A61B2017/00561—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated creating a vacuum
    • A61B2017/00566—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated creating a vacuum fixation of form upon application of vacuum
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/30—Surgical pincettes without pivotal connections
    • A61B2017/306—Surgical pincettes without pivotal connections holding by means of suction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/005—Auxiliary appliance with suction drainage system

Definitions

  • the invention relates to a device for removing organs from the human or animal body.
  • Such a device is used to dispose of internal organs that have been affected in particular due to illnesses or other negative influences and can no longer perform their function properly or have even died.
  • such a device is intended to remove a diseased uterus.
  • many devices of the type mentioned at the beginning work endoscopically and comprise at least two endoscopes, of which one endoscope contains forceps in order to sever the organ to be removed.
  • one endoscope contains forceps in order to sever the organ to be removed.
  • the devices known up to now it was not possible or only possible with great effort to create a sterile environment within the body in the area of the organ to be removed, and residues and residual particles of the removed organ remained in the body, which leads to undesirable contamination within the Body led.
  • the problem with the known devices is that the severed organ falls due to the force of gravity into the section of the body below, which not only promotes contamination but also leads to sterility problems.
  • the U.S. 5,836,953 discloses a device for removing organs from the human or animal body, comprising a tube which has a proximal end and a distal end and is intended for partial insertion with its proximal end into the body, the distal end of the tube being connected to a suction air source can be connected and the proximal end of the tube is designed for suction engagement with the organ to be removed, with a hose casing which at least partially encloses the tube and which has a proximal end and a distal end with which it is attached to the tube, with a handling device, which is arranged on the tube and designed to open or expand the tubular casing at its proximal end and to guide or lay it around the organ, with a closing device that is designed to close the proximal end of the tubular casing, and with a comminuting device that inside the tube, preferably in the region of its pr oximal end, is provided.
  • the DE 102 29 137 A1 discloses a surgical instrument which is particularly suitable for treating cysts and which has a suction head which has at least one suction opening and which is designed to bear tightly against a body tissue.
  • the suction opening can be brought into connection with a vacuum source via a vacuum line.
  • a ureteral stone suction instrument is known with a shaft through which a suction channel connectable to a suction device is known, a collecting container with a distal and a proximal opening being arranged distally from the shaft, the proximal opening of which is connected to the distal end of the suction channel.
  • a device for removing organs from the human or animal body with a tube which has a proximal end and a distal end and is intended for partial insertion with its proximal end into the body, the distal end of the tube can be connected to a suction air source and the proximal end of the tube is designed for suction engagement with the organ to be removed, with a tubular sleeve at least partially enclosing the tube, which has a proximal end and a distal end with which it is attached to the tube , with a handling device, which is preferably arranged on the tube and designed to open or expand the hose cover at its proximal end and to guide or place it around the organ, with a closing device that is designed to close the proximal end of the hose cover, and with a crusher that is inside of the tube, preferably in the region of its proximal end, is provided.
  • the organ to be removed can be safely and completely housed in an uncomplicated manner, which at least The required sterility is largely achieved and at the same time contamination of residues or residual particles of the organ to be removed is avoided.
  • a handling device which is arranged on a tube to be inserted into the body and designed to open or expand the tubular sleeve at its proximal end and to guide or place it around the organ, and with a closing device that is used for closing the proximal end of the tubular sleeve is formed.
  • the invention also offers a simple and at the same time effective solution which meets the high requirements for the required sterility.
  • the distal end of the tube can be connected to a suction air source and the proximal end of the tube is designed for suction engagement with the organ to be removed, whereby the organ to be removed, which is captured by the tubular casing closed at its proximal end in the manner of a bag and is thereby separated from the environment or the rest of the body, is sucked into the proximal end of the tube.
  • a comminution device is provided according to the invention, which is arranged inside the tube in the region of its proximal end and designed to comminute the organ to be removed while it is being sucked into the proximal end of the tube by the suction air source.
  • the volume of the organ to be removed and thus also of the closed tubular casing that holds the organ in the manner of a bag is reduced, so that the organ to be removed can be sucked off more easily through the tube.
  • proximal which according to the Duden means “close to the center of the body”
  • distal which according to the Duden means “further away from the center of the body”
  • the handling device is additionally movably arranged in the transverse direction relative to the tube in order to be able to effectively place the hose sleeve around the organ depending on the respective position of the organ to be removed.
  • a particularly preferred construction of the handling device is characterized in that it has opposing gripping arms which each have a proximal end and a distal end and are designed for releasably gripping the tubular casing, preferably in the region of its proximal end.
  • the gripping arms preferably have fixing means, preferably in the region of their proximal end, which are designed to releasably fix the tubular casing, preferably with its proximal end, to the gripping arms.
  • the gripping arms are expediently oriented in the longitudinal direction of the pipe.
  • the gripping arms are preferably designed to be angled, preferably approximately transverse, to the longitudinal extension of the pipe.
  • the proximal ends of opposing gripping arms are spaced apart from one another which is smaller than the diameter of the tube, and a central section of the gripping arms located between the proximal and distal ends is in relation to the tube is curved outward, so that at least at its most outward location in the radial direction, the distance between the middle sections of opposing gripping arms is greater than the distance between the proximal ends of these gripping arms and preferably also greater than the diameter of the tube.
  • Such a shaping of the gripping arms is particularly advantageous in order not only to guide or place the tubular casing around the organ, but also to hold the organ surrounded by the then closed tubular casing securely in the area of the central sections of the gripping arms. Furthermore, the elasticity in connection with the shape ensures that the gripping arms at their proximal end against the The force caused by the elasticity are first opened in order to open or expand the tubular casing at its proximal end, and then the pretensioning created by the elasticity is used to bring the proximal end of the gripping arms back into their closed position after enclosing the organ .
  • the outside of the tube is provided with guide grooves running in its longitudinal direction, in which the gripping arms are movably received in their longitudinal direction, and the arrangement is such that in the proximal end position of the handling device, the gripping arms with a proximal At the end of the adjoining section protrude beyond the proximal end of the tube and are thus exposed. This allows a particularly large range of motion for the gripper arms.
  • the handling device preferably has spreading elements which are designed to at least partially spread the gripping arms away from one another during the movement of the handling device to their proximal end position, in order to open or expand the tubular casing at its proximal end and to guide or place it around the organ.
  • the spreading elements are arranged on the tube in the region of its proximal end and have a guide surface which rises from the outside of the tube to its proximal end and against which the gripping arms can be brought into contact.
  • the radial distance between the guide surfaces of the expansion elements at their proximal end or at the proximal end of the tube is greater than the radius of the tube and accordingly the radial distance between the guide surfaces of opposing expansion elements at their proximal end or at the proximal end of the tube is greater than the diameter of the pipe.
  • the spreading elements according to this preferred development accordingly act like a cone for spreading the gripping arms resting thereon.
  • the expansion elements can preferably be in these guide grooves be arranged and the guide surface rise from the bottom of the guide grooves.
  • the spreading elements are arranged at a distance from one another, a spreading element is assigned to each gripping arm and, in order to release the gripping arms from the spreading elements, the pipe on the one hand and / or the gripping arms on the other hand can be acted upon with a relative movement to one another in order to move the gripping arms into a lateral position to spend next to the expansion elements.
  • a lateral displacement of the tube relative to the gripping arms or a lateral displacement of the gripping arms relative to the tube or a corresponding mutual lateral displacement of the tube and the gripping arms relative to one another ensures that the gripping arms slip off the spreading elements and thereby close the gripping arms.
  • the gripping arms are preferably connected to one another in the region of their distal end, as a result of which the handling of the gripping arms, in particular during their movement into the proximal end position, is simplified.
  • an annular element is provided to which the gripping arms are attached with their distal end and which is preferably to be used as a handling element.
  • the locking device is expediently provided on the handling device.
  • the closing device can preferably have closing means which are provided on the gripping arms, preferably at their free or proximal ends.
  • the closing device can preferably have eyes or eyelets provided at the proximal end of the tubular sleeve and at least one thread or wire that can be pulled through the eyes or eyelets, whereby the proximal end of the tubular sleeve is closed in the manner of a sewing process.
  • the comminution device should preferably have at least one rotatably mounted cutting knife.
  • a sleeve is preferably provided for arrangement on the surface of the body or for insertion into the surface of the body, the tube extending through the sleeve and being movable relative to the sleeve.
  • Such a sleeve allows a better fixation of the device on the surface of the body and a simpler and at the same time precise orientation of the tube when it is inserted into the body in the direction of the organ to be removed.
  • the gripping arms can preferably be arranged between the inside of the sleeve and the outside of the pipe and be in contact with the inside of the sleeve and the outside of the pipe. Such an arrangement favors safe guidance of the gripping arms. In the case of the formation of a middle section of the gripping arms located between the proximal and distal ends with an outwardly curved shape, this arrangement causes an expansion due to the curved shape of the gripping arms.
  • the gripping arms are forcibly brought into an essentially fully extended state by the sleeve and thus essentially fully extended, since the space between the outside of the tube and leaves no substantial slack in the inside of the sleeve;
  • the gripping arms are forcibly brought into an essentially fully extended state by the sleeve and thus essentially fully extended, since the space between the outside of the tube and leaves no substantial slack in the inside of the sleeve;
  • the curved course of the middle section of the gripping arms initially causes the gripping arms to spread apart, at least as long as the curved course of the outwardly curved middle section of the gripping arms creates a middle section of the gripping arms contributes force directed outwards to the inside of the sleeve, and then closing the gripping arms again, at the latest when the outwardly curved middle section of the gripping arms is exposed outside the sleeve and thus the gripping arms are no longer subject to any forced influences caused by the sleeve.
  • the inside of the sleeve is provided with guide grooves running in the direction of movement of the handling device, in which the gripping arms are movably arranged in their longitudinal direction, and the arrangement is such that in the proximal end position of the handling device the gripping arms with their proximal end the subsequent section protrude beyond the proximal end of the tube and are thus exposed.
  • the sleeve preferably has a flange-like edge.
  • the hose sleeve is designed as a double sleeve with an inner sleeve and an outer sleeve surrounding the inner sleeve at a distance to form a space, and a compressed air source can be connected to the space formed between the inner sleeve and the outer sleeve.
  • a compressed air source By connecting a compressed air source, the space between the inner shell and the outer shell can be inflated and pressurized. This has three effects. A larger space is created around the organ to be removed, which facilitates the handling of the device and in particular of the handling device. Furthermore, the environment of the organ to be removed is stabilized within the body. Finally, this is a particularly important point, the organ to be disposed of is pressurized, which causes a compression of the organ, whereby the removal of the organ through the pipe is accelerated and thus promoted in addition to the negative pressure there due to the suction effect.
  • the closing device can be designed to close the proximal end of the inner sheath and to close the proximal end of the outer sheath or, alternatively, to close the proximal ends of the inner sheath and the outer sheath together.
  • the handling device is at least partially in the area between the inner sleeve and Outer shell formed space arranged. This avoids contact of the handling device with the organ to be disposed of and ensures safe handling of the tubular casing for enclosing the organ.
  • the inner sheath is sealingly connected to the outer sheath at the proximal end of the tubular sheath. This development is particularly advantageous because the closing device only has to close the common proximal end of the tubular casing formed by the inner casing and the outer casing in a single operation.
  • the handling device comes with its proximal end from the inside into contact with the proximal end of the tubular sleeve which sealingly connects the inner sleeve with the outer sleeve, and the tubular sleeve is thereby connected with the aid of the Handling device can be handled particularly easily.
  • the tube is designed as an inner tube, which is surrounded by an outer tube at a distance to form a space, the inner tube is movable relative to the outer tube and with a portion adjacent to its proximal end from the proximal end of the outer tube arranged so that it can be pulled out, the hose casing is essentially arranged in the space between the inner tube and the outer tube before use and can be exposed by pulling the inner tube out of the outer tube and the shredding device is provided within the inner tube in the region of its proximal end.
  • the hose sleeve can be 'hidden' in the space between the inner tube and the outer tube before use and only unfolded after the device has been inserted into the body by pulling the inner tube out of the outer tube.
  • the aforementioned sleeve When using the aforementioned sleeve, it can preferably be arranged at the proximal end of the outer tube or even be formed by the outer tube itself.
  • the handling device can be arranged and designed either on the outside of the inner tube or on the outer tube, in particular depending on the space requirement of the device.
  • the hose casing should expediently be fastened with its distal end to the inner tube, since the removal of the organ to be disposed of takes place through the inner tube.
  • the inner tube Before the device is used, the inner tube is usually withdrawn into the outer tube and the handling device is also in a retracted position in which it at least does not protrude beyond the outer tube and the inner tube.
  • the handling device When the inner tube is pulled out of the outer tube, the handling device is preferably initially taken along from the inner tube or the handling device is moved essentially parallel to the inner tube, the handling device taking the hose sleeve with it and pulling it out at least to a greater extent from the space originally formed between the inner tube and the outer tube and thus removed from the outer tube until the proximal end of the inner tube is in the vicinity of the organ to be removed or has even come into contact with it.
  • the handling device is preferably moved relative to the inner tube in order to open or expand the tubular casing it has taken along at its proximal end and to guide or place it around the organ to be removed.
  • the inner tube in such a way that when it is pulled out of the inner tube it takes the hose sleeve with it and thereby essentially exposes it.
  • the inner cover can preferably be fastened to the inner tube and the outer cover to the outer tube and the compressed air source to the space formed between the inner tube and the outer tube be connectable.
  • the compressed air source can be connected to the device in a particularly simple and at the same time safe manner outside the body, but the compressed air can also be conducted particularly easily and at the same time effectively into the hose casing designed as a double envelope inside the body.
  • a device 2 for removing organs from the human or animal body according to a first preferred exemplary embodiment in an initial first operating state is shown schematically in longitudinal section.
  • the device 2 has an outer tube 4 with an open proximal end 4a and an open distal end 4b and an inner tube 6 with an open proximal end 6a and an open distal end 6b. Furthermore, the device 2 in the illustrated embodiment has a sleeve 8, which has an open proximal end 8a and an open distal end 8b and forms an extension of the outer tube 4 by placing the outer tube 4 with its proximal end 4a at the distal end 8b the sleeve 8 is attached.
  • the inner tube 6 is mounted so as to be movable in the longitudinal direction thereof with respect to the arrangement of the outer tube 4 and the sleeve 8, for which purpose suitable bearing or guide elements are to be provided, which are not shown in the figures.
  • the device 2 in the illustrated embodiment contains a comminution device which has a knife arranged in the region of the proximal end 8a of the sleeve 8, which in the illustrated embodiment has a rotary knife rotatably mounted about the longitudinal axis of the inner tube 6, which is at the end of a rotary shaft 16 sits, whose axis of rotation coincides with the longitudinal axis of the inner tube 6 and is set in rotation by a motor, not shown.
  • the outer tube 4, the inner tube 6 and the sleeve 8 in the illustrated embodiment are arranged essentially concentrically to one another, so that their longitudinal axes essentially coincide.
  • the sleeve 8 is used to insert the device 2 into the skin 18 of a human or animal body 20 and at the same time to fix the device 2 in the direction of an organ 22 to be removed from the body 20, such as Fig. 1 also reveals.
  • the in Fig. 1 The device 2 is thus already arranged on the skin 18 of the body 20 or inserted into the skin 18 of the body 20 with the aid of the sleeve 8, but is not yet in operation.
  • Fig. 2 the device 2 is shown in a second operating state.
  • the inner tube 6 has been moved in the direction of the arrow A relative to the outer tube 4 and the sleeve 8 and has been pulled out of the proximal end 8a of the sleeve 8 and inserted deeper into the body 20 in the direction of the organ 22 to be removed until the proximal end 6a of the inner tube 6 comes into contact with the organ 22 to be removed.
  • the inner tube 6 with its distal end 6b and an adjoining section still remains within the outer tube 4 and the sleeve 8, while the inner tube 6 with the remaining section adjacent to its proximal end 6a extends out of the sleeve 8 in FIG extends the body 20 and is therefore exposed with this section within the body 20.
  • hose sleeve 12 which is carried along by the inner tube 6 during the movement out of the outer tube 4 and the sleeve 8, so that its distal end 12b continues to be within the remaining space 10 between the outer tube 4 and the sleeve 8 on the one hand and the inner tube 6 in the section adjacent to the distal end 6b of the inner tube 6, but otherwise exposed and its proximal end 12a, which was carried along by the inner tube 6 during its movement, is adjacent to the organ 22.
  • a vacuum or suction device is connected to in the cavity 4c of the outer tube 4b and in the cavity 4c of the outer tube 4 via the open distal end 6b of the inner tube 6 communicating cavity 6c of the inner tube 6 to generate a negative pressure which in Fig. 2 is indicated schematically with "-p". Due to the negative pressure within the cavity 6c of the inner tube 6, a suction effect occurs at the proximal end 6a of the inner tube 6, whereby the organ 22 is drawn to the proximal end 6a of the inner tube 6. In this way, an initially loose contact between the proximal end 6a of the inner tube 6 and the organ 22 to be removed results in a fixation of the organ 22 at the proximal end 6a of the inner tube 6.
  • Fig. 2 can also be seen schematically, in the illustrated embodiment, eyelets 26 are attached to the proximal end 12a of the hose reel 12, through which a wire or thread 28 can be pulled, which is provided with a loop 28a at one end.
  • the thread 28 can be seen in a state in which it has already been pulled through the eyelet 26 and the loop 28a.
  • the thread 28 is usually prepared accordingly before the device 2 is used, that is to say is drawn or guided in a loose state through the eyelet 26 at the proximal end 12a of the tubular casing 12 and through the loop 28a provided at one end. Accordingly, in the initial first operating state according to Fig.
  • the thread 28 can pass along the inner tube 6 through the space 10 remaining between the outer tube 4 and the sleeve 8 on the one hand and the section of the inner tube 6 adjacent to the distal end 6b on the other hand, and then through the cavity 4c of the outer tube 4 to the outside and be served from there.
  • the organ 22 to be removed within the body 20 should be separated from its surroundings and thus released, for which purpose an endoscope with a cutting knife, also not shown in the figures, is preferably to be used.
  • Fig. 3 reveals further details of the device 2 according to the first embodiment.
  • the hose sleeve 12 is designed as a double sleeve with an inner sleeve 12c and an outer sleeve 12d, with an intermediate space 12e being formed between the inner sleeve 12c and the outer sleeve 12d.
  • the tubular sleeve 12 open at its proximal end 12a; however, the space 12e between the inner sheath 12c and the outer sheath 12d at the proximal end 12a of the tubular sheath 12 is closed by the proximal end 12ca of the inner sheath 12c and the proximal end 12da of the outer sheath 12d over the entire circumference of the proximal end 12a of the tubular sheath 12 with each other are connected.
  • Fig. 3 Recognize as a further component of the device 2 at least a part of a handling device in the form of gripping arms 30, which in the illustrated embodiment have an elongated rod shape and are oriented in the direction of the longitudinal extension of the inner tube 6.
  • the gripping arms 30 are arranged within the space 10. Furthermore, the gripping arms 30 can be moved in the direction of their longitudinal extension both with respect to the outer tube 4 and the sleeve 8 on the one hand and with respect to the inner tube 6, for which the handling device has correspondingly suitable storage and guide means, but not shown in the drawings, and also in the drawings Has actuators and / or handling or drive means, not shown.
  • the gripping arms 30 are preferably mounted on the outside of the inner tube 6 so that they can move in its longitudinal direction, so that when the inner tube 6 is extended from the sleeve 8 during the transition from the initial, first operating state of the device 2 according to FIG Fig. 1 in the second operating state of the device 2 according to Fig. 2 the gripping arms 30 are at least initially taken along by the inner tube 6.
  • the gripping arms 30 it is in principle, however, it is also conceivable to mount the gripping arms 30 on the inside of the outer tube 4 so as to be movable in its longitudinal direction.
  • the gripping arms 30 are also housed within the space between the outer tube 4 and the sleeve 8 on the one hand and the inner tube 6, but this is in the Figures 1 and 2 is not shown recognizable.
  • the gripping arms 30 are arranged at least with their section located adjacent to their proximal end 30a between the inner sleeve 12c and the outer sleeve 12d and thus within the space 12e formed between the inner sleeve 12c and the outer sleeve 12d within the tubular sleeve 12, so that In other words, the tubular casing 12, designed as a double casing, accommodates the gripping arms 30 in the manner of a stocking.
  • the inner sleeve 12c is attached to the outside of the inner tube 6, preferably in the region of its proximal end 6a, and the outer sleeve 12d is attached to the inside of the sleeve 8 or the outer tube 4, so that the between the outer tube 4 and the sleeve 8 on the one hand and the inner tube 6 on the other hand, the intermediate space 10 formed within the hose sleeve 12 between the inner sleeve 12c and the outer sleeve 12d communicates with the intermediate space 12e.
  • such an arrangement ensures that the hose sleeve 12 is guided by the gripping arms 30, not only when exiting the space 10 between the outer pipe 4 and the sleeve 8 on the one hand and the inner pipe 6 on the other hand during the extension movement of the inner tube 6 from the sleeve 8 in the direction of the Figs. 1 and 2 arrow A shown, but also for a relative movement of the hose sleeve 12 with respect to the inner tube 6, in particular to guide the hose sleeve 12 beyond the proximal end 6a of the inner tube 6 in the direction of the organ 22 to be removed, also essentially in Direction of in the Figs. 1 and 2 arrow A.
  • the gripping arms 30 are not only movable in their longitudinal direction, but how Fig. 3 can also be recognized, movable in the transverse direction and thus spreadable. Because how Fig. 3 can also be seen, is the one to be removed Organ 22 generally wider than the diameter of the inner tube 6. Thus, an outwardly directed spreading movement of the gripping arms 30 is also required in order to encompass the organ 22 to be removed during their simultaneous movement in the longitudinal direction and thereby wrap the hose sleeve 12 around the organ 22 to be able to.
  • the gripping arms 30 consist of a plurality of articulated links, such as Fig. 3 can be seen schematically, and / or the gripping arms 30 are designed to be flexible or elastic in the direction transverse to their longitudinal extension.
  • the outward spreading movement can be generated, for example, by micro-drives and / or springs (not shown in the figures) and / or by a special interaction of shape and elasticity.
  • the relative movement between the gripping arms 30 and the inner tube 6 can also be supported by the fact that during the spreading movement of the gripping arms 30, the inner tube 6 is now subjected to an opposite movement back towards the sleeve 8 and thus begins to move back into the sleeve 8 and the outer tube 4 to be retracted as in Fig. 3 is indicated by the arrow B. As a result, the organ 22 is brought between the spread gripping arms 30, so to speak.
  • the originally spread gripping arms 30 enclose the organ 22 to be removed in that the gripping arms now move towards one another with their proximal ends 30a.
  • This movement which is now opposite to the spreading movement, can also be brought about, for example, by the micro-drives or springs already mentioned and not shown in the figures, or by a combined effect of special shaping and elasticity.
  • the inner tube 6 is further retracted so far into the sleeve 8 that the proximal end 6a of the inner tube 6 is approximately at the level of the proximal end 8a of the sleeve 8.
  • the upward movement of the inner tube 6 with the organ 22 hanging on it favors the closing movement of the gripping arms and the ensuing enveloping of the organ 22 with the hose sleeve 12.
  • the hose sleeve 12 can then be closed at its proximal end 12a, as Fig. 5 can be seen in which a fifth operating state of the device 2 is shown.
  • the hose casing 12 now forms a closed cavity 12f which is delimited by its inner casing 12c and in which the Organ 22 is included.
  • the tubular casing 12 now has the shape of a bag which holds the organ 22 to be removed.
  • the organ 22 to be removed by the interaction of suction pressure at the proximal end 6a of the inner tube 6, via the inner sleeve 12c of the Hose sleeve 12 exerted on the organ 22 overpressure and rotary knife 14 is compressed to a width that is at least smaller than the inner diameter of the sleeve 8 and the adjoining outer tube 4, the remaining, so shrunk organ 22 can be completely in a further work step removed from body 20 in a single piece.
  • the seventh operating state of the device 2 in this regard is shown in FIG Fig. 7 pictured.
  • the rotary shaft 16 holding the rotary knife 14 is simultaneously moved out of the sleeve 8 towards the distal end 4b of the outer tube 4 during this retraction movement of the inner tube 6
  • the movement of the rotary shaft 16 and the inner tube 6 in the direction of the arrow E can also take place synchronously.
  • the rotary knife 14 is no longer active during this movement, so that the rotary shaft 16 stands still in the direction of rotation, that is, no longer rotates is subjected.
  • the shredding device having the rotary knife 14 and the rotary shaft 16 is designed in such a way that it is between a lower working position in which the rotary knife 14 is in the area of the proximal end 8a of the sleeve 8 and, as before, within the inner tube 6 located, as in the Figures 1 to 6 is shown, and is movably mounted in an upper rest position away from the sleeve 8 in the direction of the distal end 4b of the outer tube 4, wherein it is preferably still located within the inner tube 6; the associated bearing and guide elements and a drive that may be required for this are not shown in the figures.
  • Fig. 8 shows the device 2 now in an eighth operating state, in which the outer tube 4 with the inner tube 6 received therein and the removed organ 22 contained in the hose sheath 12 has been pulled out of the sleeve 8 still remaining in the skin 18. Then the remaining organ 22 is removed from the device 2 and in the same way as the previously cut individual parts 22a ( Fig. 6 ) disposed of accordingly.
  • Fig. 9 only the sleeve 8 and the proximal ends 30a of the gripping arms are shown schematically in an enlarged, fragmentary, perspective view in a still closed state.
  • the sleeve 8 is also provided with a circumferential flange 8c, which comes to rest on the skin 18 when the sleeve 8 is inserted into the skin 18 of the body 20 and in this way enables the device 2 to be fixed on the skin 18 more easily and at the same time more effectively.
  • Fig. 10 shows essentially the same view as Fig. 9 , being opposite Fig. 9 , which shows the gripping arms not only with their proximal ends 30a in a closed state, but at the same time also in an essentially completely retracted position in the sleeve 8, the gripping arms 30 now in the direction of the in Fig. 10 Organ not shown to be removed extended further and are already slightly open.
  • Fig. 11 shows essentially the same view as Fig. 9 with gripping arms 30 now essentially fully spread and thus open, this state being approximately the same as in FIG Fig. 3 depicted third operating state of the device 2 corresponds.
  • Fig. 12 shows schematically in a perspective view a unit of inner tube 6, sleeve 8 and gripping arms 30 as part of a device for removing organs from the human or animal body according to a further preferred embodiment.
  • the gripping arms 30 again form at least part of a handling device, otherwise not shown.
  • the sleeve 8 has a circumferential flange 8c.
  • the gripping arms 30 are connected to one another at their distal ends 30b via an annular connecting element 32, whereby the gripping elements 30 can be moved jointly and synchronously in the longitudinal direction of the inner tube 6.
  • the ring-shaped connecting element 32 is thus also part of the handling device, otherwise not shown, and is preferably coupled to a suitable drive which forms a further component of the handling device mentioned and is not shown in the figures.
  • the gripping arms 30 are arranged between the inside of the sleeve 8 and the outside of the inner pipe 6 and are essentially in contact with the inside of the sleeve 8 on the one hand and on the outside of the inner pipe 6 on the other hand.
  • Fig. 12 in which the gripping arms 30 are shown in a relaxed state, the proximal ends 30a of each opposing gripping arms 30 are spaced apart from one another which is smaller than the diameter of the inner tube 6. Furthermore, the gripping arms 30 according to FIG Fig. 12 between their proximal and distal ends 30a, 30b have a middle section which is curved outwardly in relation to the inner tube 6, so that at least at its point furthest outward in the radial direction, the distance of the middle sections from opposing gripping arms 30 is larger than the diameter of the inner tube 6.
  • the gripping arm 30 has a first outwardly curved section 30c adjacent to its proximal end 30a and a second outwardly curved section 30d adjacent to its distal end 30b, the two outwardly curved sections 30c, 30d over the middle section 30e are connected to each other, which is designed arcuately.
  • the proximal and distal ends 30a, 30b are aligned approximately in alignment with one another.
  • the gripping arm 30 is made of elastic material, preferably plastic.
  • the one in the Figures 12 and 13 are in the retracted distal end position of the handling device, in which the gripping arms 30 are in a so-called starting position, within the space 10 between the outer tube 4 and the sleeve 8 on the one hand and the inner tube 6 on the other ( Fig. 1 ) forced into an essentially fully stretched state and thus essentially fully stretched, since the radial opening width of the gap 10 is only slightly larger than the radial thickness of the gripping arms 30 and the gap 10 between the outside of the inner tube 6 on the one hand and the inside of the outer tube 4 and the sleeve 8, on the other hand, is not essential Leaves room for maneuver.
  • the shape of the gripping arms 30 between the middle section 30e and the second curved section 30d in the direction of the distal end 30b causes the gripping arms 30 to close again at their proximal ends 30a, at the latest when the arcuate middle section 30e of the gripping arms 30 is exposed outside the sleeve 8 and thus the gripping arms 30 are no longer subject to any coercive influences caused by the sleeve 8; then the gripping arms 30 take about a position as shown in FIG Fig. 12 is shown.
  • Fig. 14 is schematically shown in perspective view a part of a handling device with gripping arms 30 as part of a device for removing organs from the human or animal body according to a further preferred embodiment.
  • FIG. 14a shows, the design shown there differs from the design according to FIG Fig. 12 in that a so-called spreading element 36 is arranged in each guide groove 34 in the region of the proximal end 6a of the inner tube 6.
  • the expansion elements 36 have the shape of a triangle and have a guide surface 36a on their outside, which rises from the bottom of the associated guide groove 34 in the direction of the proximal end 6a of the inner tube 6, so that the radial distance of the guide surface 36a of the expansion elements 36 from the The center axis of the inner tube 6 at the proximal end 6a of the inner tube 6 is greater than the radius of the inner tube 6.
  • the Gripping arms 30 When the gripping arms 30 move out of the sleeve 8 and along the guide grooves 34, the Gripping arms 30 initially with their proximal end 30a in contact with the guide surfaces 36a of the spreading elements 36 and are pressed outward as the movement continues along the guide surface 36a of the spreading elements 36, so that the spreading elements 36 are like a wedge or cone for spreading the gripping arms 30 then resting on them Act.
  • the spreading elements 36 are arranged at a distance from one another corresponding to the distance between the gripping arms 30 and each gripping arm 30 is assigned a spreading element.
  • the inner tube 6 on the one hand and / or the gripping arms 30 on the other hand can be acted upon with a relative movement to one another in order to bring the gripping arms 30, which had been resting on the spreading elements 36 up to that point, into a position laterally next to the spreading elements 36.
  • a lateral displacement of the inner tube 6 with respect to the gripping arms 30 or a lateral displacement of the gripping arms 30 by applying a rotary movement to the ring 32 connecting the gripping arms 30 at their distal end 30b or a corresponding mutual lateral displacement of the inner tube 6 and the Gripping arms 30 relative to one another for the gripping arms 30 to slip off the spreading elements and thereby for closing the gripping arms 30.
  • the spreading elements 36 can be provided with a smaller width than the guide grooves 34 and arranged laterally within the guide grooves 34, so that if the gripping arms 30 slip off the spreading elements 36, the gripping arms 30 can be picked up again by the guide grooves 34; For this, however, it is necessary that the width of the gripping arms 30 is not greater than the remaining clear width of the guide grooves 34 in the area of the spreading elements 36.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgical Instruments (AREA)
EP17800489.1A 2016-11-11 2017-11-13 Vorrichtung zur entfernung von organen aus dem menschlichen oder tierischen körper Active EP3537987B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016006899 2016-11-11
PCT/EP2017/079067 WO2018087368A1 (de) 2016-11-11 2017-11-13 Vorrichtung zur entfernung von organen aus dem menschlichen oder tierischen körper

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EP3537987A1 EP3537987A1 (de) 2019-09-18
EP3537987B1 true EP3537987B1 (de) 2020-09-16

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US (1) US11134930B2 (ja)
EP (1) EP3537987B1 (ja)
JP (1) JP7145852B2 (ja)
CN (1) CN110213995B (ja)
CA (1) CA3045942A1 (ja)
ES (1) ES2836449T3 (ja)
HU (1) HUE052920T2 (ja)
WO (1) WO2018087368A1 (ja)

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CA3045942A1 (en) * 2016-11-11 2018-05-17 Bernd Buscherhoff Device for removing organs from a human or animal body
JP7454829B2 (ja) 2019-09-13 2024-03-25 株式会社オビツ製作所 人形の頭部連結構造

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Publication number Publication date
HUE052920T2 (hu) 2021-05-28
JP7145852B2 (ja) 2022-10-03
WO2018087368A1 (de) 2018-05-17
ES2836449T3 (es) 2021-06-25
JP2019534109A (ja) 2019-11-28
CA3045942A1 (en) 2018-05-17
CN110213995A (zh) 2019-09-06
EP3537987A1 (de) 2019-09-18
CN110213995B (zh) 2022-07-26
US20190261968A1 (en) 2019-08-29
US11134930B2 (en) 2021-10-05

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